I have a 2012 RAN 2500 fully deleted by Ray at DRD.
Love my truck and the tuning.
The other day my truck went into limp mode and wouldn't go out of 4th gear.
Checked the DTC and had P0846 - Trans fluid pressure sens/switch B circ range/performance.
Got it home and did some reading and ended up changing the line pressure sensor.
The truck ran fine for 2 days and then went to limp mode again.
I had the same code as before and a new code of P0934 - line pressure sensor circuit low.
I had the line pressure check with a gauge and scanner and both read around 175-180 psi.
I Spoke with Ray and he said in my tune he increased the line pressure to 170 psi.
Could I be getting the code due to my line pressure exceeding 170 psi?
If so could it be caused by cross leaks in the valve body?
I have been looking at the ATS valve body upgrade if that is the problem.
I don't want to replace it with a OEM since they seem to be weak.